Defragmentation is valid Scrabble Word

Is defragmentation a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words NO
Is defragmentation valid Words with Friends?
Words with Friends YES

15 letters word
22 points in Scrabble
26 points in WWF

Definitions for DEFRAGMENTATION in dictionary:

VERB:

reduce the fragmentation of (a file) by concatenating parts stored in separate locations on a disk

OTHER DEFINITIONS:

(computing) The action of defragmenting, particularly with respect to a computer disk or drive.

Similar words containing FRAGMENTA without suffix tion and without prefix de

fragmental16 fragmentary20 fragmentate17 fragmentally21 fragmentated19 fragmentates18 fragmentarily22 fragmentating20 fragmentation19 fragmentations20 fragmentariness21 fragmentarinesses23

Find what other words can be done using letters: "defragmentation"
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